Built energy conglomerate Perez Companc and sold it to energy giant Petrobras for $1 billion in 2002. Now focuses on the type of oil that comes from vegetables. Food and farming concern Molinos Rio de la Plata, in which he owns a controlling stake, recently spent $110 million to expand its soybean-crushing factory in San Lorenzo. Argentina's answer to Kraft also deals in pasta, flour and frozen foods. Side project: with wife, Maria Carmen, raises dairy cows and churns ice cream for Munchi's, a small chain of ice cream parlors.